Thread gripper

Abstract

The utility model provides a kind of wire grabber, even if unexpected force is applied, the interval between movable gripping body and fixed gripping body can be inhibited to change in the way of being smaller. Wire grabber (1001) has: fixed wire part (1010), it contains with the upper gripping body (1011) of linear body pressing portion (1010x);Lower gripping body (1021) has linear body holding portion (1020x) relative to linear body pressing portion (1010x) in and out;Operating portion (1030) is used for receiving external force;And first connecting rod component (1040) and second connecting rod component (1050), it is linked with fixed wire part (1010), lower gripping body (1021) and operating portion (1030) respectively, the in and out of lower gripping body (1021) relative to the movement of upper gripping body (1011) and operating portion (1030) and the swing of first connecting rod component (1040) and second connecting rod component (1050) are linked, wherein, it is equipped with in and out limiting mechanism (1100), the in and out limiting mechanism (1100) variably limits the advance and retreat of lower gripping body (1021) relative to upper gripping body (1011) according to the operation from outside.

Description

Technical Field

[0001] This utility model relates to a wire gripper, and more particularly to a wire gripper used, for example, to grip a wire during the process of pulling the wire while cutting a covered wire. Background Technology

[0002] When cutting electrical wires, a wire gripper is used to loosen the wire at the point where it is pulled and cut. A wire gripper is a device used to hold (grip) the wire with a certain force. They are mainly used in pairs, attached to the ends of a freely retractable telescopic shaft, and positioned at the two desired points on the wire. By retracting the telescopic shaft, the distance between the grippers decreases, creating an arched loosening of the wire between the two points gripped by the grippers.

[0003] To grip the wire using the tension generated by the contraction of the assembled telescopic shaft, the wire gripper has a structure in which a fixed gripping body that holds the wire from above and below, a movable gripping body, and an operating arm that receives the tension via the telescopic shaft are connected via a linkage member. Thus, by the oscillation of the linkage member driven by the movement of the operating arm, the movable gripping body moves forward and backward toward the upper wire gripping body, changing the interval between the upper and lower wire gripping bodies, thereby gripping the wire.

[0004] On the other hand, a wire gripper is known as the one described in Patent Document 1, which grips wires by swinging a linkage component through an action different from that of the operating arm using tension from the telescopic shaft.

[0005] Patent Document 1 describes a cable gripper with a lifting ring tightening part that allows a linkage member to swing via user input. The lifting ring tightening part has a head at one end that pushes upwards against the linkage member, and an annular portion at the other end that protrudes downwards compared to the operating arm and rotates upon user input. The head moves forward and backward while being pressed against the linkage member, depending on the rotation of the annular portion. Thus, when the linkage member is pressed by the head of the lifting ring tightening part, it swings in a manner that advances the movable gripper toward the fixed gripper.

[0006] Such a wire gripper can grip the wire before it is connected to the telescopic shaft, for example, suitable for cutting wires at high altitudes.

[0007] Existing technical documents

[0008] Patent documents

[0009] Patent Document 1: Japanese Patent Application Publication No. 2020-145818 Utility Model Content

[0010] The problem to be solved by utility models

[0011] However, the aforementioned conventional wire grippers have the following problem: In the wire gripper described in Patent Document 1, the movement of the movable gripper is also linked to the movement of other parts of the operating arm via the linkage member, so even if an external force is applied to the operating arm, the movable gripper may still move.

[0012] Therefore, when an unexpected force is applied to the linkage or the operating arm, the linkage may swing from the position where the head of the lifting ring tightening part abuts, causing the movable gripper to move further toward the fixed gripper. In this case, the distance between the movable and fixed grippers changes from the position adjusted by the lifting ring tightening part to a further decreasing direction. Such a change particularly hinders the operation of pre-grabbing the wire with the wire gripper, resulting in a decrease in the workability of cutting wires at heights.

[0013] Therefore, the main objective of this invention is to provide a wire gripper that can suppress changes in the gap between the movable gripper and the fixed gripper even when an unexpected force is applied.

[0014] Technical means for solving problems

[0015] The first embodiment of this utility model is a wire gripper, comprising: a fixed wire gripping part, which includes a fixed gripping body having a wire-shaped pressing part; a movable gripping body, which has a wire-shaped holding part that moves forward and backward relative to the wire-shaped pressing part of the fixed gripping body; an operating part for receiving external force; and a linkage component, which is respectively connected to the fixed wire gripping part, the movable gripping body, and the operating part. The forward and backward movement of the movable gripping body relative to the fixed gripping body is linked to the movement of the operating part and the swinging of the linkage component. The wire gripper includes a forward and backward movement limiting mechanism, which variably limits the forward and backward movement of the movable gripping body relative to the fixed gripping body according to an external operation.

[0016] In such a wire gripper, such as Figure 13 As shown in (A), the forward and backward distance of the lower gripper 1021, which is a movable gripper, relative to the upper gripper 1011, which is a fixed gripper, is determined based on the minimum value GminPI and the maximum value GmaxPI of the interval that the lower gripper 1021 can achieve relative to the upper gripper 1011. By restricting both the forward and backward movements of the lower gripper 1021, the minimum value GminPI is greater than the distance based on the distance between the lower gripper 1021 and the upper gripper 1011. Figure 13In (B) shown, the minimum value of the interval of the conventional wire gripper is GminPA = 0, and the maximum value is GmaxPI, which is less than the maximum value GmaxPA based on the conventional wire gripper. As an example of the forward and backward restriction, as in the swing restraint part of the second embodiment of the present invention, the forward and backward restriction mechanism restricts the swing range θ1 of the first link member 1040, which is a link member, from each of its two ends, so that it becomes less than the swing range θ2.

[0017] Therefore, even if an unexpected force is applied to the various parts that make up the gripper, the movement of the movable gripper relative to the fixed gripper will be restricted. In particular, the minimum value of the gap generated by the movement of the movable gripper relative to the fixed gripper is kept greater than GminPA=0 in the previous example. Therefore, the gap between the movable gripper and the fixed gripper is reduced.

[0018] Furthermore, the forward and backward limiting mechanism can swing the linkage component and move the movable gripper relative to the fixed gripper by making the forward and backward distance of the movable gripper variable, without any external force applied to the linkage component or the operating part.

[0019] The second embodiment of this utility model, based on the wire gripper of the first embodiment, includes a swing restraint part in the advance / retreat limiting mechanism. This swing restraint part comprises: a first swing restraint end, which interferes with the link member swinging in a direction corresponding to the movement of the movable gripper towards the fixed gripper to restrain the swing; and a second swing restraint end, which interferes with the link member swinging in a direction corresponding to the movement of the movable gripper retracting from the fixed gripper to restrain the swing. When the operating part does not receive external force, according to an external operation, the link member swings in a direction corresponding to the movement of the movable gripper towards the fixed gripper or in a direction corresponding to the movement of the movable gripper retracting from the fixed gripper.

[0020] The third embodiment of this utility model, based on the wire gripper of the second embodiment of this utility model, has the second swing restraint end of the swing restraint part of the advance-retreat restriction mechanism fixed to the operating part in a state where its position is variable relative to the operating part according to an operation from the outside. The first swing restraint end of the swing restraint part of the advance-retreat restriction mechanism is configured to be at least position-variable relative to the link member in accordance with the position change of the second swing restraint end. The advance-retreat distance of the movable gripper relative to the fixed gripper and the position changes of the first swing restraint end and the second swing restraint end of the advance-retreat restriction mechanism are variably limited accordingly.

[0021] The fourth embodiment of this utility model, based on the wire gripper of the third embodiment, further comprises the swing restraint part of the advance / retreat restriction mechanism, which includes: a connecting part that connects the first swing restraint end of the swing restraint part as one end, which is variably and freely swingable relative to the connecting rod member, and the other end of which is freely swingable relative to the operating part; and an adjusting part that includes an adjusting body having a front end that is freely swingable to the other end of the connecting part as the second swing restraint end of the swing restraint part, wherein the adjusting body is moved according to an external operation, and the position of the second swing restraint end relative to the operating part is freely adjusted, and the advance / retreat distance of the movable gripper relative to the fixed gripper is variably limited based on the position change of the second swing restraint end adjusted by the adjusting part.

[0022] The fifth embodiment of this utility model, based on the wire gripper of the third or fourth embodiment of this utility model, has a variable in-plane position of the first swing restraint end of the swing restraint part of the forward and backward restraint mechanism when viewed along the swing axis direction of the connecting rod member and the movable wire gripper, in the connection position between the connecting rod member and the fixed gripper, the connection position between the connecting rod member and the movable gripper, and the connection position between the connecting rod member and the operating part.

[0023] The sixth embodiment of this utility model, based on the line gripper of the first embodiment, further includes a secondary connecting rod component. This secondary connecting rod component is arranged parallel to the connecting rod component along the extending direction of the linear pressing part of the fixed gripper and the linear holding part of the movable gripper. It is flexibly connected to the fixed line gripping part, the movable gripper, and the operating part. The connecting rod component, the secondary connecting rod component, the fixed line gripping part, the movable gripper, and the operating part form a parallel linkage mechanism that allows the movable gripper to maintain the same posture relative to the fixed gripper. The connecting rod component and the secondary connecting rod component are components of the same shape.

[0024] The seventh embodiment of this utility model, based on the wire gripper of the first embodiment of this utility model, wherein the advance and retreat restriction mechanism is located between the wire-shaped body holding part and the operating part of the fixed gripper along the advance and retreat direction of the movable gripper relative to the fixed gripper.

[0025] Utility Model Effect

[0026] The present invention achieves the effect of preventing the gap between the movable gripper and the fixed gripper from changing in a smaller manner even when an unexpected force is applied.

[0027] The above-mentioned objects, other objects, features and advantages of this utility model will become more apparent from the following detailed description of the "Specific Embodiments" with reference to the accompanying drawings. Attached Figure Description

[0028] Figure 1 This is an overall perspective view showing the structure of the wire gripper according to an embodiment of the present invention.

[0029] Figure 2 This is a front view showing the structure of the wire gripper according to an embodiment of the present invention.

[0030] Figure 3 This is a rear view showing the structure of the wire gripper according to an embodiment of the present invention.

[0031] Figure 4 This is a right view showing the structure of the wire gripper according to an embodiment of the present invention.

[0032] Figure 5 This is a left view showing the structure of the wire gripper according to an embodiment of the present invention.

[0033] Figure 6 This is a perspective view showing the structure of the connecting rod component of the wire gripper according to an embodiment of the present invention.

[0034] Figure 7 This is a perspective view showing the structure of the main parts of the wire gripper according to an embodiment of the present invention.

[0035] Figure 8 This is a front view showing the structure of the main parts of the wire gripper according to an embodiment of the present invention.

[0036] Figure 9 This is a diagram illustrating the operation of the wire gripper according to an embodiment of the present invention.

[0037] Figure 10 This is a diagram illustrating the operation of the wire gripper according to an embodiment of the present invention.

[0038] Figure 11 This is a diagram illustrating the operation of the wire gripper according to an embodiment of the present invention.

[0039] Figure 12 This is a diagram illustrating the operation of the wire gripper according to an embodiment of the present invention.

[0040] Figure 13 (A) is a diagram illustrating the effect of this utility model, and (B) is a diagram illustrating the effect of a conventional wire gripper. Detailed Implementation

[0041] (direction)

[0042] In this instruction manual, such as Figure 2 As shown, the side of the operating part 1030 away from the fixed cable gripping part 1010, as described later, is referred to as the pulling side or right / right side, and the side of the operating part 1030 approaching the fixed cable gripping part 1010 is referred to as the pushing side or left / left side. Furthermore, in this specification, the term... Figure 1 The front side shown is referred to as the front, frontal, or heel-front side, while the back side is referred to as the opposite side, rear, or rearward side. Furthermore, Figure 1 In the middle, the right side is right-right, and the left side is left-left. In addition, the movable wire gripping part 1020, which will be described later, is considered to be moving forward when it approaches the fixed wire gripping part 1010, and moving backward when it moves away.

[0043] (Implementation Method)

[0044] Figure 1 This is an overall perspective view showing the structure of the wire gripper according to an embodiment of the present invention. Figure 2 This is a front view showing the structure of the wire gripper according to this embodiment. Figure 3 This is a rear view showing the structure of the wire gripper according to this embodiment. Figure 4 This is a right view showing the structure of the wire gripper according to this embodiment. Figure 5 This is a left view showing the structure of the wire gripper according to this embodiment.

[0045] As shown in the figures, the cable gripper 1001 of this invention comprises the following main components: a fixed cable gripping part 1010; a movable cable gripping part 1020 assembled to the fixed cable gripping part 1010; an operating part 1030 detachably connected to a telescopic rod (not shown) to bear the tension of the external force of this invention; a first connecting rod member 1040 and a second connecting rod member 1050 respectively connected to the fixed cable gripping part 1010, the movable cable gripping part 1020, and the operating part 1030, and having the same shape; and a forward / backward limiting mechanism 1100 respectively connected to the operating part 1030 and the first connecting rod member 1040. Furthermore, regarding the material of these components, it is preferable that all or part of them are made of metal or synthetic resin, or a combination thereof.

[0046] (Fixed cable gripping section)

[0047] The fixed cable gripping part 1010 is the uppermost component in the cable gripper 1001. The fixed cable gripping part 1010 has an upper gripping body 1011 and a base part 1012 that are integrally formed as different parts of the same component.

[0048] As an example, the upper gripper 1011 is a part with a generally cubic shape extending in the left-right direction, and it is a part that clamps a linear body (e.g., a wire-covering part) extending in the left-right direction from above. The upper gripper 1011 is opposite to the lower gripper 1021 of the movable wire-gripping part 1020, which will be described later, and is formed across the left-right direction. As an example, it has a linear body pressing part 1010x with an arcuate profile in cross-section.

[0049] The base portion 1012 is a flat plate extending downward from the long side opposite to the upper gripper 1011. On the lower side of the base portion 1012, a first link component mounting portion 1013 and a second link component mounting portion 1014 are formed, protruding downwards and arranged at predetermined intervals in the left-right direction. The first link component mounting portion 1013 and the second link component mounting portion 1014 are used to assemble the first link component 1040 and the second link component 1050, respectively, relative to the base portion 1012, at the same height in the left-right direction, onto the fixed gripper portion 1010. The first link component mounting portion 1013 is at the same height as the second link component mounting portion 1014 and is located on the right side.

[0050] A through hole for the second pivot Ax2 is formed in the first link component mounting portion 1013. The first link component 1040 is fixed in position relative to the second pivot Ax2 and is oscillatingly fixed to the fixed cable gripping portion 1010. Similarly, in the second link component mounting portion 1014, at the same height as the through hole in the first link component mounting portion 1013, a through hole for the fifth pivot Ax5 is formed. The second link component 1050 is fixed in position relative to the fifth pivot Ax5 and is oscillatingly fixed to the fixed cable gripping portion 1010.

[0051] (Modible wire gripping part)

[0052] The movable wire gripping part 1020 is a component located directly below the upper gripping body 1011 of the fixed wire gripping part 1010 and in front of the base part 1012. The movable wire gripping part 1020, together with the upper gripping body 1011 located on the upper side, grips the wire from the lower side.

[0053] The movable wire gripping part 1020 includes: a lower gripping body 1021, which is opposite to the upper gripping body 1011 of the fixed wire gripping part 1010 and is formed across the left-right direction. For example, it has a wire-shaped body holding part 1020x with an arc-shaped cross-section; and a first wire gripping body mounting part 1022 and a second wire gripping body mounting part 1023, which are formed to protrude from the lower side of the lower gripping body 1021 and are arranged at predetermined intervals along the left-right direction. The first wire gripping body mounting part 1022 and the second wire gripping body mounting part 1023 are for assembling the lower gripping body 1021 while maintaining it in a state parallel to the upper gripping body 1011 of the fixed wire gripping part 1010, and allowing it to swing freely. The first wire gripping body mounting part 1022 is at the same height as the second wire gripping body mounting part 1023 and is located on the right side. Furthermore, the first cable gripping body mounting part 1022 is located to the right of the first link component mounting part 1013 of the fixed cable gripping part 1010. The second cable gripping body mounting part 1023 is located between the first link component mounting part 1013 and the second link component mounting part 1014 of the fixed cable gripping part 1010.

[0054] The lower gripper 1021 corresponds to the shape of the upper gripper 1011 of the fixed gripper part 1010, and has a roughly cubic shape.

[0055] As Figure 2 Right main section sectional view at line AA Figure 4 and as Figure 2 The left main part of the side view from direction B. Figure 5 As shown, the first wire gripping body mounting portion 1022 and the second wire gripping body mounting portion 1023 are formed as a pair of separate configurations at the left and right ends of the lower gripping body 1021, respectively, by sandwiching a receiving groove 1021x formed in the center of the lower gripping body 1021 and parallel to the wire holding portion 1020x.

[0056] A through hole is formed in the first cable gripping body mounting portion 1022 for inserting the first pivot Ax1. Thus, the first connecting rod member 1040 is fixed in position relative to the first pivot Ax1 within the receiving groove 1021x and is flexibly fixed to the movable cable gripping portion 1020. Similarly, in the second cable gripping body mounting portion 1023, a through hole is formed at the same height as the through hole in the first cable gripping body mounting portion 1022 for inserting the fourth pivot Ax4. Thus, the second connecting rod member 1050 is fixed in position relative to the fourth pivot Ax4 within the receiving groove 1021x and is flexibly fixed to the movable cable gripping portion 1020.

[0057] (Operations Department)

[0058] The operating unit 1030 is the lowest component in the wire gripper 1001. The operating unit 1030 has a pair of auxiliary operating components, namely, a first auxiliary operating component 1030a and a second auxiliary operating component 1030b, which engage with the first linkage component 1040 and the second linkage component 1050, as well as the forward / backward limiting mechanism 1100, respectively, from the front and rear sides. The operating unit 1030 is connected to a telescopic rod (not shown), thereby receiving external force along the push-back side (left side) or pull side (right side) and moving accordingly to drive the first linkage component 1040 and the second linkage component 1050, which are incorporated into the wire gripper 1001.

[0059] The operating section 1030 is divided into: a parallel section 1031, which extends parallel to the left and right directions and is used to connect with the first link member 1040 and the second link member 1050 respectively; and an oblique section 1032, which extends obliquely to the right from the parallel section 1031 and is used to assemble the device from the telescopic rod side to the operating section 1030.

[0060] In the parallel section 1031, a through hole is formed for the insertion of the third pivot Ax3. Thus, the first link member 1040 is fixed in position relative to the third pivot Ax3 and is oscillatingly fixed to the operating section 1030. Similarly, in the parallel section 1031, at the same height as the through hole for the insertion of the third pivot Ax3 but to the left of that position, a through hole is formed for the insertion of the sixth pivot Ax6. Thus, the second link member 1050 is fixed in position relative to the sixth pivot Ax6 and is oscillatingly fixed to the operating section 1030.

[0061] At the right end of the oblique section 1032, a mounting hole 1032x is formed for assembling the device from the telescopic side to the operating section 1030. In addition, next to the left side of the mounting hole 1032x, a connecting pin 1033 is inserted to engage the first auxiliary operating component 1030a and the second auxiliary operating component 1030b.

[0062] (First link assembly and second link assembly)

[0063] The first link component 1040 and the second link component 1050 are mechanical elements that, by being connected to the movable wire gripping part 1020 and the operating part 1030 respectively, constitute a parallel linkage mechanism in which the movable wire gripping part 1020 and the operating part 1030 move in parallel. Furthermore, the first link component 1040 and the second link component 1050 are mechanical elements that, by also being connected to the base part 1012 of the fixed wire gripping part 1010, transform the left-right movement relative to the operating part 1030 into the forward and backward movement of the lower gripping body 1021 of the movable wire gripping part 1020 relative to the upper gripping body 1011 of the fixed wire gripping part 1010.

[0064] Figure 6 This is a perspective view showing the structure of the first link component 1040. Furthermore, the first link component 1040 and the second link component 1050 are components of the same shape, and will be used in the following description. Figure 6 The bracketed reference numerals in the figures serve as the reference numerals for the second link component 1050. (Refer to...) Figure 2 and Figure 6 The first link component 1040 has a first link insertion hole 1042x formed on a flat first link body 1041 for connecting the first link component 1040 to a first wire-grabbing body mounting portion 1022 of a movable wire-grabbing portion 1020, a second link insertion hole 1043x for connecting the first link component 1040 to a base portion 1012 of a fixed wire-grabbing portion 1010, and a third link insertion hole 1044x for connecting the first link component 1040 to a parallel portion 1031 of an operating portion 1030. A first pivot Ax1 is inserted into the first link insertion hole 1042x. A second pivot Ax2 is inserted into the second link insertion hole 1043x. A third pivot Ax3 is inserted into the third link insertion hole 1044x.

[0065] The first connecting rod insertion hole 1042x, the second connecting rod insertion hole 1043x, and the third connecting rod insertion hole 1044x are arranged to form a triangle with the straight line connecting the first connecting rod insertion hole 1042x and the third connecting rod insertion hole 1044x as its long side and as the opposite side to the second connecting rod insertion hole 1043x. Therefore, the first connecting rod main body 1041 can have a planar shape that is approximately triangular, approximately L-shaped, approximately Y-shaped, or approximately T-shaped. In this embodiment, the first connecting rod main body 1041 has a generally triangular planar shape comprising a first apex portion 1042 including the first connecting rod insertion hole 1042x, a second apex portion 1043 including the second connecting rod insertion hole 1043x, and a third apex portion 1044 including the third connecting rod insertion hole 1044x. In addition, the first link insertion hole 1042x is arranged to the right of the straight line formed by the second link insertion hole 1043x and the third link insertion hole 1044x when it is assembled to the wire gripper 1001.

[0066] Furthermore, the first link component 1040 has a first in-plane opening 1041x provided on the first link body 1041, which is surrounded by the first link insertion hole 1042x, the second link insertion hole 1043x, and the third link insertion hole 1044x. The first in-plane opening 1041x has a generally elongated oval, elliptical, or ovate shape that extends relatively long in the vertical direction as shown in the figure. However, the first in-plane opening 1041x can have any shape as long as it can be configured to allow the locking pin 1112 of the connecting portion 1110 of the retraction restriction mechanism 1100 (described later) to be positioned and swing freely in both the left-right and vertical directions within it.

[0067] Similarly, the second link component 1050 has a fourth link insertion hole 1052x formed on the flat second link body 1051 for connecting the second link component 1050 to the second wire gripping body mounting portion 1023 of the movable wire gripping portion 1020, a fifth link insertion hole 1053x for connecting the second link component 1050 to the base portion 1012 of the fixed wire gripping portion 1010, and a sixth link insertion hole 1054x for connecting the second link component 1050 to the parallel portion 1031 of the operation portion 1030. A fourth pivot Ax4 is inserted into the fourth link insertion hole 1052x. A fifth pivot Ax5 is inserted into the fifth link insertion hole 1053x. A sixth pivot Ax6 is inserted into the sixth link insertion hole 1054x.

[0068] The fourth link insertion hole 1052x, the fifth link insertion hole 1053x, and the sixth link insertion hole 1054x are configured to form a triangle with the straight line connecting the first link insertion hole 1042x and the third link insertion hole 1044x as its long side and as the opposite side to the second link insertion hole 1043x. Therefore, the second link main body 1051 can have a planar shape that is approximately triangular, approximately L-shaped, approximately Y-shaped, or approximately T-shaped. In this embodiment, the second link main body 1051 has a generally triangular planar shape comprising a fourth apex portion 1052 including the fourth link insertion hole 1052x, a fifth apex portion 1053 including the fifth link insertion hole 1053x, and a sixth apex portion 1054 including the sixth link insertion hole 1054x. In addition, the fourth link insertion hole 1052x is arranged to the right of the straight line formed by the fifth link insertion hole 1053x and the sixth link insertion hole 1054x when it is assembled to the wire gripper 1001.

[0069] Furthermore, the second link component 1050 has a second in-plane opening 1051x disposed on the second link body 1051, which is surrounded by the fourth link insertion hole 1052x, the fifth link insertion hole 1053x, and the sixth link insertion hole 1054x. The second in-plane opening 1051x has the same shape as the first in-plane opening 1041x.

[0070] The wire gripper 1001, by having the above structure, forms a parallel linkage mechanism in which the movable wire gripping part 1020, the operating part 1030, the first linkage member 1040, and the second linkage member 1050 are oscillatingly fixed relative to the base part 1012 of the fixed wire gripping part 1010. Thus, the left-right movement of the operating part 1030 is transformed by the oscillation of the first linkage member 1040 and the second linkage member 1050 into the movement of the lower gripping body 1021 of the movable wire gripping part 1020 moving forward and backward relative to the upper gripping body 1011 of the fixed wire gripping part 1010 while maintaining the same posture. As a result, the wire gripper 1001 clamps the wire between the parallel wire pressing part 1010x and the wire holding part 1020x, and grips the wire using a force corresponding to the amount of movement of the operating part 1030.

[0071] (Entry and exit restrictions)

[0072] The forward and backward movement restriction mechanism 1100 is a mechanism that, based on an operation from the outside, causes the first linkage member 1040 and the second linkage member 1050 to swing through an action different from the external force received by the operating part 1030. This causes the lower gripping body 1021 of the movable gripping part 1020 to move forward and backward relative to the upper gripping body 1011 of the fixed gripping part 1010, and restricts the swing of the first linkage member 1040 and the second linkage member 1050 of the gripper 1001. This variably restricts both the forward and backward movement of the lower gripping body 1021 of the movable gripping part 1020 relative to the upper gripping body 1011 of the fixed gripping part 1010.

[0073] The following shall also be referred to Figure 7 and Figure 8 An explanation will be provided here. Figure 7 This is an enlarged view of the main parts based on a perspective view, used to illustrate the assembly of the forward / reverse limiting mechanism 1100 and the first link component 1040. Figure 8This is a magnified view of the main part based on a plan view, showing the assembly of the forward and backward movement restricting mechanism 1100 and the operation unit 1030. The forward and backward movement restricting mechanism 1100 is realized as a swing restricting part 1400, which includes: a connecting part 1110, which is located between the wire body holding part 1020x and the operation unit 1030 along the forward and backward movement direction of the lower gripping body 1021 relative to the upper gripping body 1011, and is assembled to the first link component 1040; and an adjusting part 1120, which is assembled to the operation unit 1030. The swing restricting part 1400 directly acts on the first link component 1040 to restrict its swing.

[0074] (Connecting part)

[0075] The connecting part 1110 has: a connecting body 1111, which sandwiches the first link component 1040 from the front and rear sides, and is substantially inverted Y-shaped when viewed from the left and right directions and substantially I-shaped when viewed from the front; and an engaging pin 1112 with a substantially cylindrical outer shape, which is provided at one end side of the connecting body 1111 and is arranged in the first surface inner opening 1041x of the first link component 1040. The size of the cross-section of the engaging pin 1112 is smaller than the size of the opening shape of the first surface inner opening 1041x in both the left and right directions and the up and down directions. Therefore, the engaging pin 1112 is engaged with the first surface inner opening 1041x of the first link component 1040 in a state where it cannot be separated. In other words, the engaging pin 1112 is arranged in the first surface inner opening 1041x in a form that is position-variable and swingable in both the left and right directions and the up and down directions.

[0076] A through hole is provided at the other end of the connecting body 1111. The connecting body 1111 is swingably fixed to a connecting pivot 1124 provided coaxially with the abutting end 1123 of the adjusting part 1120 to be described later through this through hole. Thus, the connecting part 1110 is fixed in position relative to the adjusting part 1120 and swingably fixed.

[0077] In addition, the connecting body 1111 is a combination of a first sub-connecting component 1111a with a long strip-shaped (original Japanese: short strip-shaped) outer shape located in front of the first link component 1040 and a second sub-connecting component 1111b with the same shape as the first sub-connecting component 1111a and located behind the first link component 1040, but it can also be composed of either the first sub-connecting component 1111a or the second sub-connecting component 1111b. In addition, the first sub-connecting component 1111a and the second sub-connecting component 1111b can be of the same shape or different shapes from each other. That is, the connecting body 1111 only needs to be able to fix the connecting part 1110 in position relative to the adjusting part 1120 and swingably fix it, and is not limited by its specific shape or the number of component parts.

[0078] (Adjusting part)

[0079] In particular, such as Figure 8 As shown in the enlarged view of the main part, the adjustment unit 1120 includes: an adjustment body 1121 disposed in the space formed between the first auxiliary operation member 1030a and the second auxiliary operation member 1030b of the operation unit 1030; an operation end 1122 disposed at one end of the adjustment body 1121; an abutment end 1123 disposed at the other end of the adjustment body 1121; a connecting pivot 1124 disposed coaxially with the abutment end 1123; and a holding part 1125 fixed to the operation unit 1030 and screwed into the adjustment body 1121, thereby freely holding the adjustment body 1121.

[0080] The adjusting body 1121 is a screw-shaped component and has: a threaded portion 1121a having an outer peripheral surface 1121s with a male thread; and a connecting end 1121b extending further from the threaded portion 1121a toward the abutting end 1123.

[0081] The connecting end 1121b is used to connect the threaded portion 1121a to the abutting end 1123. No male thread is formed on the outer peripheral surface of the connecting end 1121b, thereby preventing the adjusting body 1121 from falling off the retaining portion 1125.

[0082] The connecting end 1121b has: a cylindrical portion 1121b1, which is continuously formed from the threaded portion 1121a; and a cover 1121b2, which is assembled to the front end of the cylindrical portion 1121b1 and rotatably accommodates the connecting shaft 1123b of the abutment end 1123 (described later). Furthermore, in Figure 8 In the diagram, the housing 1121b2 is shown as a cross-sectional view along its central axis.

[0083] The operating end 1122 is a part used to receive external operations to rotate the adjustment body 1121. In addition, the operating end 1122 is shown as a ring-shaped component in the figure, but it can also have a hook shape or other arbitrary shape as long as it can receive operations to rotate the adjustment body 1121 by hand gripping or clamping.

[0084] In the wire grabber 1001, such as Figure 8 As shown, the adjustment body 1121 is arranged in an inclined position with the abutment end 1123 located on the upper left and the operating end 1122 located on the lower right. Thus, the abutment end 1123 is opposite to the right edge 1041a of the first link member 1040, and the operating end 1122 is located below the parallel portion 1031 of the operating portion 1030 and protrudes towards the lower right.

[0085] The abutment end 1123 has: an abutment body 1123a, which extends in the front-rear direction and is a component with a generally cylindrical shape; and a connecting shaft 1123b with a generally cylindrical shape, which protrudes from the side of the abutment body 1123a in the radial direction and is connected to the connecting end 1121b of the adjusting body 1121.

[0086] On each of the pair of end faces of the abutting body 1123a, a connecting pivot 1124, coaxial with the abutting body 1123a, protrudes in the front-rear direction. The other end of the connecting body 1111 of the connecting part 1110 is flexibly connected to the connecting pivot 1124.

[0087] The connecting shaft 1123b is coaxially disposed with the adjusting body 1121 within the housing 1121b2 of the connecting end 1121b, and is slidably fixed relative to the bottom surface of the cylindrical portion 1121b1. Therefore, when the adjusting body 1121 rotates, the housing 1121b2 of the connecting end 1121b rotates around the connecting shaft 1123b; on the other hand, the abutment end 1123 does not follow the rotation of the adjusting body 1121 but maintains its initial posture, moving forward and backward along the extending direction of the adjusting body 1121. Furthermore, in Figure 8 Regarding the outer diameter of the connecting shaft 1123b, the diameter near the abutting end 1123 is smaller than that near the adjusting body 1121, thereby preventing the connecting shaft 1123b from detaching from the cover 1121b2. However, the structure of the connecting end 1121b and the connecting shaft 1123b is not limited to this. The connecting end 1121b and the connecting shaft 1123b can be implemented by any structure based on known conventional technology, as long as the abutting end 1123 is not responsive to the rotation of the adjusting body 1121 and maintains its initial posture while moving forward and backward along the extension direction of the adjusting body 1121.

[0088] like Figure 1 , Figure 4 and Figure 8 As shown, the retaining part 1125 includes: a retaining body 1125c with a generally parallelepiped shape; a threaded hole 1125x formed in the retaining body 1125c corresponding to the arrangement orientation and position of the adjusting body 1121; and a lower fixing hole 1125y and an upper fixing hole 1125z, which are provided at positions that clamp the threaded hole 1125x from the lower and upper sides respectively, forming through holes extending in the front-rear direction. Furthermore, in Figure 8 In the middle, the main body 1125c is shown as a cross-sectional view along the central axis of the adjusting body 1121.

[0089] The retaining part 1125 is fixed to the operating part 1030 by being fitted into the lower fixing hole 1125y and the upper fixing hole 1125z respectively by the lower fixing pin 1125a and the upper fixing pin 1125b. A female thread is formed on the inner surface of the threaded hole 1125x, which is threaded into the outer peripheral surface 1121s of the adjusting body 1121, which has a male thread.

[0090] Therefore, in the advance and retreat restriction mechanism 1100, the regulating subject 1121 is based on Figure 8 The rotation operation of the operating end 1122, indicated by arrow D1, involves rotating it within the holding body 1125c of the holding part 1125, using its extending direction as the rotation axis, while simultaneously moving it along the direction of its rotation. Figure 7 and Figure 8 Arrow D2 in the diagram indicates the direction of rotation: forward and backward.

[0091] Furthermore, the abutment end 1123 connected to the adjusting body 1121 moves forward and backward relative to the right edge end 1041a of the first link member 1040, and is in a state where it can contact the region R1 on the edge end 1041a. The connecting portion 1110 connected to the abutment end 1123 swings about the connecting pivot 1124 driven by the forward and backward movement of the abutment end 1123, and the locking pin 1112 is in a state where it can move within the opening 1041x in the first surface of the first link member 1040. In addition, in the following description, it is assumed that when the operating end 1122 is rotated clockwise, the adjusting body 1121 moves forward relative to the first link member 1040, and when the operating end 1122 is rotated counterclockwise, the adjusting body 1121 moves backward from the first link member 1040, but the correspondence between the rotation direction of the operating end 1122 and the forward and backward movement direction of the adjusting body 1121 can also be opposite.

[0092] In the above description, the wire gripper 1001 corresponds to the wire gripper of this utility model. The fixed wire gripping part 1010 corresponds to the fixed wire gripping part of this utility model. The upper gripping body 1011 corresponds to the fixed gripping body of this utility model. The lower gripping body 1021 corresponds to the movable gripping body of this utility model. The operating part 1030 corresponds to the operating part of this utility model. The first connecting rod component 1040 corresponds to the connecting rod component of this utility model, and the second connecting rod component 1050 corresponds to the secondary connecting rod component of this utility model. The forward and backward limiting mechanism 1100 corresponds to the forward and backward limiting mechanism of this utility model.

[0093] Furthermore, the combination of the swing restraint part 1400, the connecting part 1110, and the adjusting part 1120 constituting the forward and backward restriction mechanism 1100 is equivalent to the swing restraint part of this utility model. The locking pin 1112 of the connecting part 1110 is equivalent to the first swing restraint end of this utility model, and the abutting end 1123 is equivalent to the second swing restraint end of this utility model.

[0094] The cable gripper 1001 of this utility model, which has the above structure, is equipped with a forward and backward limiting mechanism 1100. In the absence of external force on the operating part 1030, the lower gripper 1021 moves forward and backward relative to the upper gripper 1011 by rotating the operating end 1122 of the adjusting part 1120. Even if an unexpected external force is applied to the operating part 1030, the gap between the lower gripper 1021 and the upper gripper 1011 is prevented from changing in a smaller manner.

[0095] (The action of the cable gripper)

[0096] The following is for reference Figure 2 , Figures 7-12 This describes the operation of the wire gripper 1001 in the embodiment of this utility model.

[0097] Will Figure 9 The initial state is defined as the state in which the abutment end 1123 of the adjustment section 1120 is located at the lowest point relative to the operation section 1030. When the operation section 1030 is not subjected to external force, when a clockwise swinging force is applied to the first link member 1040 and the second link member 1050 based on the load of the operation section 1030 and the adjustment section 1120, the swinging is hindered by the interference between the edge end 1041a of the first link member 1040 and the abutment end 1123 of the adjustment section 1120, and the lower gripper 1021 remains stationary relative to the upper gripper 1011.

[0098] When the operating end 1122 is rotated clockwise, the adjusting body 1121 moves to the upper left. Simultaneously, the abutment end 1123 resists the load of the operating part 1030 and the adjusting part 1120, pressing against the edge 1041a of the first link member 1040 while sliding, causing the first link member 1040 to swing counterclockwise. As a result, the second link member 1050, connected to the first link member 1040, swings counterclockwise, and in conjunction with this, the movable wire gripping part 1020 advances towards the upper gripping body 1011 of the fixed wire gripping part 1010, and the operating part 1030 moves to the right. During this period, the locking pin 1112 of the connecting part 1110, unaffected by external forces, moves primarily downwards within the opening 1041x in the first surface of the first link member 1040. Therefore, by rotating the operating end 1122 clockwise, the movable wire gripping part 1020 moves forward relative to the fixed wire gripping part 1010, and the wire-like body, which is like a wire sheath, is fastened between the wire-like body pressing part 1010x disposed between the fixed wire gripping part 1010x and the wire-like body holding part 1020x of the movable wire gripping part 1020. This allows the movable wire gripping part 1020 to be fixed in a way that prevents it from moving backward relative to the fixed wire gripping part 1010, and enables the wire-like body to be gripped securely.

[0099] like Figure 10 As shown, when the adjusting body 1121 is moved to the upper left to the maximum distance it can move so that the abutment end 1123 is at the uppermost position relative to the operating part 1030, the first link member 1040 and the second link member 1050 stop swinging in the state where the abutment end 1123 interferes with the edge 1041a of the first link member 1040. At this position, the lower gripper 1021 stops relative to the upper gripper 1011.

[0100] On the other hand, when from Figure 10 When the operating end 1122 is rotated counterclockwise as shown, the adjusting body 1121 moves to the lower right, and the abutment end 1123 also moves to the lower right. At this time, the abutment end 1123 slides on the edge 1041a of the first link member 1040 while bearing the load of the operating part 1030 and the adjusting part 1120, causing the first link member 1040 to swing clockwise. As a result, the first link member 1040 and the second link member 1050 swing while the abutment end 1123 interferes with the edge 1041a of the first link member 1040. Simultaneously, the movable wire gripping part 1020 retracts from the upper gripping body 1011 of the fixed wire gripping part 1010, and the operating part 1030 moves to the left, returning to the original position. Figure 9 The initial state is shown. During this period, the locking pin 1112 of the connecting part 1110 is not affected by external force and moves mainly from bottom to top within the opening 1041x in the first surface of the first link member 1040. Therefore, by rotating the operating end 1122 counterclockwise, the movable wire gripping part 1020 is retracted relative to the fixed wire gripping part 1010, and the fastening of the wire-like object between the wire-like pressing part 1010x disposed in the fixed wire gripping part 1010 and the wire-like holding part 1020x of the movable wire gripping part 1020 can be released.

[0101] In this embodiment of the wire gripper 1001, when the operating part 1030 is not subjected to external force, the first linkage member 1040 swings in response to the forward and backward movement of the abutment end 1123 caused by the rotational operation of the operating end 1122 of the adjustment part 1120 of the forward and backward restriction mechanism 1100. This causes the movable wire gripping part 1020 to move forward and backward relative to the fixed wire gripping part 1010. This allows for easy operation of gripping high-altitude wires using ground-based controls. Furthermore, the forward and backward distance of the fixed wire gripping part 1010 relative to the movable wire gripping part 1020 is given as the difference (G1-G2) between the initial distance G1 between the wire pressing part 1010x and the wire holding part 1020x and the distance G2 between the wire pressing part 1010x and the wire holding part 1020x when the abutment end 1123 is at its highest relative to the operating part 1030.

[0102] Furthermore, in the wire gripper 1001 of this embodiment, when an unexpected force is applied from the outside, causing movement of the operating part 1030 or swinging of the first linkage member 1040 and the second linkage member 1050, and in conjunction with this, the lower gripping body 1021 moves forward or backward relative to the upper gripping body 1011, the following effect occurs: the forward / backward limiting mechanism 1100 functions as a swing restraint part 1400, such as... Figure 7 As shown, the swing S of the first link component 1040 about the second pivot Ax2 restricts both the forward and backward movement of the lower gripper 1021.

[0103] Specifically, in Figure 9 In the initial state shown, when the abutment end 1123 of the adjustment section 1120 of the forward / backward limiting mechanism 1100 is located at the lowest position relative to the operation section 1030, and the operation section 1030 has moved to the right due to external force, as follows: Figure 11 As shown, the first link member 1040 and the second link member 1050 swing counterclockwise in response to the movement of the operating part 1030, and the movable wire gripping part 1020 advances towards the upper gripping body 1011 of the fixed wire gripping part 1010. At this time, along with the movement of the operating part 1030, the abutment end 1123 of the adjusting part 1120 also moves away from the edge end 1041a of the first link member 1040, but the connecting part 1110 connected to the abutment end 1123 swings counterclockwise around the connecting pivot 1124 of the abutment end 1123, and the locking pin 1112 moves downward within the opening 1041x in the first surface of the first link member 1040, interfering with the lower edge of the opening 1041x in the first surface. This interference hinders the counterclockwise swing of the first link component 1040 and the second link component 1050, and stops the movable wire gripping part 1020.

[0104] Based on the above actions, under the restriction of the forward / backward limiting mechanism 1100, the maximum forward / backward distance of the fixed wire gripping part 1010 relative to the movable wire gripping part 1020 becomes smaller. That is, in Figure 9 In the initial state of the wire gripper 1001 shown, the distance G1 between the wire pressing part 1010x and the wire holding part 1020x before the operating part 1030 is subjected to external force gives the maximum value of the distance that the wire pressing part 1010x and the wire holding part 1020x can achieve. On the other hand, as Figure 11As shown, the minimum distance that can be achieved between the linear pressing part 1010x and the linear holding part 1020x is the distance G3, which is based on the interference position of the locking pin 1112 of the connecting part 1110 and the edge of the first in-plane opening 1041x of the first link member 1040. Therefore, when restricted by the advance and retreat restriction mechanism 1100, the advance and retreat distance of the movable line gripping part 1020 relative to the fixed line gripping part 1010 based on the swing of the first link member 1040 is given as the difference (G1-G3) of these distances.

[0105] Furthermore, even in Figure 10 As shown, when the abutment end 1123 of the adjustment section 1120 of the forward / backward restriction mechanism 1100 is at its uppermost position relative to the operating section 1030, if the operating section 1030 moves to the right due to external force, as Figure 12 As shown, the first linkage component 1040 and the second linkage component 1050 also swing counterclockwise in response to the movement of the operating part 1030, and the movable wire gripping part 1020 advances towards the upper gripping body 1011 of the fixed wire gripping part 1010. At this time, it also... Figure 11 Similarly, as the operating part 1030 moves, the abutment end 1123 of the adjusting part 1120 moves away from the edge end 1041a of the first link member 1040. On the other hand, the connecting part 1110 swings counterclockwise about the connecting pivot 1124 of the abutment end 1123, and the locking pin 1112 moves downward within the opening 1041x in the first surface of the first link member 1040, interfering with the lower edge of the opening 1041x. Through this interference, the counterclockwise swing of the first link member 1040 and the second link member 1050 is hindered, and the movable wire gripping part 1020 stops.

[0106] Based on the above actions, under the restriction of the forward / backward limiting mechanism 1100, the minimum forward / backward distance of the fixed wire gripping part 1010 relative to the movable wire gripping part 1020 also becomes smaller. That is, in Figure 10 When the abutment end 1123 of the adjustment section 1120 of the advance / retreat restriction mechanism 1100 is positioned at its uppermost position relative to the operation section 1030, the distance G2 between the linear pressing section 1010x and the linear holding section 1020x before the operation section 1030 is subjected to external force is given the maximum value of the distance that the linear pressing section 1010x and the linear holding section 1020x can achieve. On the other hand, as shown... Figure 12As shown, the minimum distance that can be achieved between the linear pressing part 1010x and the linear holding part 1020x is the distance G4, which is based on the interference position of the locking pin 1112 of the connecting part 1110 and the edge of the first in-plane opening 1041x of the first link member 1040. Therefore, when restricted by the advance and retreat restriction mechanism 1100, the minimum advance and retreat distance of the movable line gripping part 1020 relative to the fixed line gripping part 1010 based on the swing of the first link member 1040 is given as the difference (G2-G4) between these distances.

[0107] Furthermore, when the swing is not hindered by the connecting part 1110 of the forward / backward restriction mechanism 1100, regarding the first link member 1040, even if the abutment end 1123 is in any position, when the operating part 1030 is subjected to an external force to move to the right, the parallel linkage mechanism including the first link member 1040 swings within its maximum swing range, and the lower gripper 1021 is in a forward-moving state until the distance between the linear pressing part 1010x and the linear holding part 1020x becomes less than the distance G4. In other words, because the swing is hindered by the connecting part 1110 of the forward / backward restriction mechanism 1100, the distance the lower gripper 1021 moves forward is limited to a range where the distance between the linear pressing part 1010x of the upper gripper 1011 and the linear holding part 1020x of the lower gripper 1021 is greater than or equal to the distance G4.

[0108] On the other hand, when the operating unit 1030 is subjected to an external force that attempts to move it to the left, the first linkage member 1040 and the second linkage member 1050 swing clockwise, and the lower gripper 1021 attempts to retract relative to the upper gripper 1011. However, the swinging of the first linkage member 1040 and the second linkage member 1050... Figure 9 and Figure 10 Consistent with the state shown, the first link member 1040 is obstructed at the position where its edge 1041a interferes with the abutment end 1123 of the adjustment part 1120, so the movable gripping part 1020 cannot move, and consequently, the operation part 1030 cannot move either. Therefore, the retraction distance of the lower gripping body 1021 relative to the upper gripping body 1011 becomes 0, and the interval between the linear pressing part 1010x of the upper gripping body 1011 and the linear holding part 1020x of the lower gripping body 1021 is maintained at an interval G1 or G2 corresponding to the position of the abutment end 1123.

[0109] As explained above, in the wire gripper 1001 of this embodiment, when an unexpected force is applied from the outside, causing movement of the operating part 1030 or swinging of the first linkage member 1040 and the second linkage member 1050, and the lower gripper 1021 attempts to move forward or backward relative to the upper gripper 1011, the forward / backward restriction mechanism 1100 functions as a swing restraint part 1400. The connecting part 1110 and the adjusting part 1120 respectively obstruct the counterclockwise and clockwise swinging of the first linkage member 1040. Thus, both forward and backward movement of the lower gripper 1021 relative to the upper gripper 1011 are restricted. In particular, by obstructing the counterclockwise swinging of the first linkage member 1040 through the connecting part 1110, the forward movement of the lower gripper 1021 relative to the upper gripper 1011 is hindered.

[0110] Therefore, even if an unexpected force is applied to the wire gripper 1001, the distance between the wire pressing part 1010x and the wire holding part 1020x can be prevented from changing in a smaller manner. As a result, it is easy to perform the operation of gripping the wires installed at high altitudes using the wire gripper from the ground, thereby improving the workability of cutting high-altitude wires.

[0111] Furthermore, regarding the wire gripper 1001 of this embodiment, in the advance / retreat restriction mechanism 1100, the engaging pin 1112 of the connecting part 1110 is configured such that its position in the vertical direction is variable within the opening 1041x in the first surface of the first connecting rod member 1040. Therefore, after the first connecting rod member 1040 swings and moves to a certain extent in the downward direction, it is obstructed, thereby achieving the following effect. That is, during cutting operations, after the wire gripper 1001 is installed on a linear body such as a wire sheath, when the operating part 1030 is connected to the telescopic rod and an external force is applied, the lower gripping body 1021 can advance relative to the upper gripping body 1011 by a distance corresponding to the amount of movement of the engaging pin 1112 within the opening 1041x in the first surface. Thus, the wire gripper 1001 can be in a state where it temporarily (temporarily) grips the linear body with a certain pressure using the external force from the operating part 1030. Then, by rotating the operating end 1122, it is possible to perform fastening operations on linear objects such as wires. As a result, it is possible to perform cutting operations on linear objects with good workability.

[0112] Furthermore, in the wire gripper 1001 of this embodiment, the advance and retreat restriction mechanism 1100, in a structure that allows the lower gripper 1021 to advance or retreat relative to the upper gripper 1011 through the rotational operation of the operating end 1122 of the adjustment part 1120, i.e., a structure in which the position of the abutment end 1123 of the adjustment part 1120 and the first connecting rod member 1040 are variable, combines the locking pin 1112 of the connecting part 1110 in a structure in which the position is variable and swings freely fixed to the first in-surface opening 1041x of the first connecting rod member 1040, thereby constituting the swing restriction part 1400.

[0113] Therefore, in the parallel linkage mechanism formed by the movable gripping part 1020, the operating part 1030, the first linkage part 1040, and the second linkage part 1050, the forward and backward limiting mechanism 1100 directly acts on the first linkage part 1040, making the degree of limitation on the swing range variable. As a result, the forward and backward distance of the lower gripping body 1021 relative to the upper gripping body 1011 changes accordingly with the change in the position of the abutment end 1123 and the locking pin 1112 based on the rotation of the operating end 1122.

[0114] Specifically, the forward and backward distance of the fixed wire gripping part 1010 relative to the movable wire gripping part 1020 corresponds to the position of the abutment end 1123 relative to the operating part 1030, so as to Figure 9 The initial state shown is the baseline, and the value varies between the maximum value (G1-G3) in the state where the abutment end 1123 is at its lowest position and the minimum value (G2-G4) in the state where the abutment end 1123 is at its highest position. The higher the position of the abutment end 1123, the smaller the forward and backward distance.

[0115] Furthermore, the maximum and minimum values ​​of the interval between the wire pressing part 1010x and the wire holding part 1020x, which serve as the reference for the forward and backward distance of the fixed wire gripping part 1010 relative to the movable wire gripping part 1020, also change accordingly with the position of the abutment end 1123 relative to the operation part 1030. That is, the maximum value varies from interval G1 in the lowest position of the abutment end 1123 to interval G2 in the highest position of the abutment end 1123 (G1>G2), and the higher the position of the abutment end 1123, the smaller the maximum value. In addition, the minimum value varies from interval G3 in the lowest position of the abutment end 1123 to interval G4 in the highest position of the abutment end 1123 (G3>G4). The higher the position of the abutment end 1123, the smaller the minimum value is by a smaller proportion compared to the maximum value.

[0116] Therefore, by adjusting the advance and retreat distance of the lower gripping body 1021 relative to the upper gripping body 1011 to a suitable range in advance, corresponding to the outer diameter of the wire or other linear object being gripped by the wire gripper 1001, the efficiency of the operation can be improved in various aspects when the wire gripper grips the linear object. Specifically, when assembling and gripping the wire gripper relative to a wire erected at a height using ground-based operation, the time required to tighten the wire through the operation end 1122 can be shortened. Alternatively, when assembling the gripper relative to a wire erected at a height using ground-based operation, the tightening action through the operation end 1122 can be omitted, and the wire can be gripped simply by extending and retracting the telescopic shaft on the operation part 1030 side.

[0117] Furthermore, the preferred range for the advance / retreat distance of the lower gripper 1021 relative to the upper gripper 1011 is a range in which the minimum value of the distance between the linear pressing portion 1010x and the linear holding portion 1020x of the lower gripper 1021 is larger than the outer diameter of the wire, and the maximum value is as small as possible. This reduces the possibility of incorrect wire assembly when assembling the wire gripper 1001 onto the wire, and reduces the amount of work required for tightening the wire at the operating end 1122 after assembly, thus improving work efficiency.

[0118] Furthermore, the cable gripper 1001 of this embodiment is characterized in that, when viewed from the front, the locking pin 1112 of the connecting part 1110 of the advance and retreat restriction mechanism 1100 is variably configured to lock into position within the first in-plane opening 1041x provided on the first connecting part 1040, which is located in the plane of the connecting position between the first connecting rod member 1040 and the movable cable gripping part 1020 (i.e., the first pivot Ax1), the connecting position between the first connecting rod member 1040 and the fixed cable gripping part 1010 (i.e., the second pivot Ax2), and the connecting position between the first connecting rod member 1040 and the operating part 1030 (i.e., the third pivot Ax3).

[0119] Therefore, without altering the shape of the first link body 1041, a structure for preventing the counterclockwise swing of the first link member 1040 can be incorporated into the first link member 1040. As a result, while maintaining the overall small structure of the cable gripper, both forward and backward movement of the lower gripper 1021 relative to the upper gripper 1011 can be restricted.

[0120] Furthermore, the cable gripper 1001 of this embodiment is characterized in that the first link member 1040 engaged by the engaging pin 1112 of the connecting part 1110 of the advance and retreat restriction mechanism 1100 has the same shape as the second link member 1050.

[0121] Therefore, the link components constituting the parallel linkage mechanism of the wire gripper 1001 can be unified into the same type, and the first in-plane opening 1041x of the first link component 1040 can also be used as an opening for weight reduction. As a result, a wire gripper can be obtained that limits both the forward and backward movement of the lower gripper 1021 relative to the upper gripper 1011 while suppressing manufacturing costs and maintaining a compact overall structure.

[0122] Furthermore, the wire gripper 1001 of this embodiment is characterized in that the advance and retreat restriction mechanism 1100 is located between the wire holding part 1020x and the operation part 1030 along the advance and retreat direction of the lower gripping body 1021 relative to the upper gripping body 1011.

[0123] Therefore, the forward / backward limiting mechanism 1100 is opposite to the swing center, i.e., the third pivot Ax3, of the first link member 1040 and the operating part 1030, and is located within the swing range of the first link member 1040 and the operating part 1030. As a result, a cable gripper can be obtained that restricts both the forward and backward movement of the lower gripper 1021 relative to the upper gripper 1011 while maintaining a compact overall structure.

[0124] As described above, the wire gripper according to the embodiments of this utility model can suppress changes in the distance between the movable gripper and the fixed gripper in a decreasing manner, even when an unexpected force is applied.

[0125] (Other implementation methods)

[0126] However, this invention is not limited to the embodiments described above.

[0127] In the above embodiment, as the swing restraint part 1400, the forward and backward restriction mechanism 1100 of the wire gripper 1001 includes: a connecting part 1110, which is located between the wire holding part 1020x and the operating part 1030 along the forward and backward direction of the lower gripper 1021 relative to the upper gripper 1011, and is assembled to the first link member 1040; and an adjusting part 1120, which is assembled to the operating part 1030, and the operating end 1122 of the adjusting part 1120 is located below the operating part 1030 and protrudes toward the lower right side.

[0128] On the other hand, in the swing restraint part 1400, which serves as the forward / backward limiting mechanism 1100, the connecting part 1110 can be assembled to the second link member 1050. Furthermore, in this case, the second link member 1050 corresponds to the link member of this invention, and the first link member 1040 corresponds to the auxiliary link member of this invention. Moreover, the operating end 1122 can also protrude in any direction on the plane formed by the vertical and horizontal directions of the wire gripper 1001.

[0129] In summary, the swing restraint part of the forward and backward limiting mechanism of the wire gripper of this utility model can have the following structure: the swing restraint part includes: a connecting part that connects the first swing restraint end of the swing restraint part as one end, which is variably and freely swingable relative to the linkage member, and the other end, which is freely swingable relative to the operating part; and an adjusting part that includes an adjusting body having a front end that is freely swingable to the other end of the connecting part as the second swing restraint end of the swing restraint part, which is moved according to an external operation, and the position of the second swing restraint end relative to the operating part is freely adjusted. The forward and backward distance of the movable gripper relative to the fixed gripper is variably limited based on the change in position of the second swing restraint end adjusted by the adjusting part. That is, this utility model is not limited by the specific form of the connection between the swing restraint part and the linkage member, or the specific configuration of the structure of the adjusting part for receiving external operations.

[0130] Furthermore, in the above-described embodiment, the forward and backward restriction mechanism 1100 of the wire gripper 1001, as the swing restraint part 1400, includes: a connecting part 1110, which is assembled to the first connecting rod member 1040 by engaging with the first in-surface opening 1041x via a locking pin 1112; and an adjustment part 1120, the adjusting body 1121 of which is screw-shaped and engages with the holding part 1125 fixed to the operating part 1030, and can move freely along its rotation axis direction. The adjusting body 1121 is provided with an operating end 1122 at both ends and an abutment end 1123 arranged opposite to the edge end 1041a of the first connecting rod member 1040.

[0131] On the other hand, in the swing restraint part 1400, which serves as the forward and backward restraint mechanism 1100, the adjusting body 1121 can be fixed to the holding part 1125 in a variable position via a notch or other form, without being screwed on, and can move continuously or intermittently along its extension direction and advance freely. In addition, in the first link member 1040 assembled by the locking pin 1112, the assembly form can also be achieved not by engaging with a closed opening such as the first in-plane opening 1041x, but by engaging with a gap communicating with the outside, or with a protrusion or recess formed on the surface of the first link body part 1041.

[0132] In summary, as long as the second swing-restraining end of the swing-restraining portion of the advance-retreat limiting mechanism of the present invention is fixed to the operating part in a state where its position is variable relative to the operating part according to an external operation, and the first swing-restraining end of the swing-restraining portion of the advance-retreat limiting mechanism is configured to be at least position-variable relative to the linkage member in accordance with the position change of the second swing-restraining end, and the advance-retreat distance of the movable gripper relative to the fixed gripper and the position change of the first and second swing-restraining ends of the advance-retreat limiting mechanism are variably limited accordingly, the present invention is not limited by a specific structure for fixing the second swing-restraining end in a variable position relative to the operating part according to an external operation, or by a specific structure for configuring the first swing-restraining end in a position at least position-variable relative to the linkage member in accordance with the position change of the second swing-restraining end.

[0133] Furthermore, in the above-described embodiment, the forward and backward limiting mechanism 1100 of the wire gripper 1001, as the swing restraint part 1400, includes: a connecting part 1110 having a locking pin 1112 that engages with the first in-plane opening 1041x of the first link member 1040; and an adjusting part 1120 having a stop end 1123 that is opposite to the edge end 1041a of the first link member 1040 and configured to be positionally variable by operation of the adjusting part 1120. In the swing restraint part 1400, the connecting part 1110 is sway-freely fixed relative to the adjusting part 1120. When the first link member 1040 swings in response to the forward movement of the lower gripper 1021 towards the upper gripper 1011, the locking pin 1112 interferes with the first in-plane opening 1041x. When the first link component 1040 swings in response to the movement of the lower gripper 1021 retracting from the upper gripper 1011, the abutment end 1123 interferes with the edge end 1041a.

[0134] On the other hand, the swing restraint part 1400, which serves as the forward / backward restriction mechanism 1100, can also be configured as a combination of the same or multiple parts, where the distance and position of the locking pin 1112 (as the first swing restraint end) and the abutment end 1123 (as the second swing restraint end) that interfere with the first link member 1040 are fixed. Furthermore, when the first link member 1040 swings in response to the forward movement of the lower gripper 1021 towards the upper gripper 1011, the interference of the first swing restraint end with the first link member 1040 can be achieved through a structure that allows for free separation and engagement with respect to the first link member 1040. Similarly, when the first link member 1040 swings in response to the backward movement of the lower gripper 1021 from the upper gripper 1011, the interference of the second swing restraint end with the first link member 1040 can be achieved through a structure that prevents separation from the first link member 1040.

[0135] In summary, the swing restraint part of the advance and retreat restriction mechanism of the wire gripper of this utility model only needs to have the following swing restraint part, which includes: a first swing restraint end that interferes with the link member swinging in the direction corresponding to the movement of the movable gripper towards the fixed gripper to restrain the swing; and a second swing restraint end that interferes with the link member swinging in the direction corresponding to the movement of the movable gripper backward from the fixed gripper to restrain the swing. When no external force is applied to the operating part, the link member swings in the direction corresponding to the movement of the movable gripper towards the fixed gripper or the direction corresponding to the movement of the movable gripper backward from the fixed gripper according to the operation from the outside.

[0136] In other words, this invention only needs to be configured such that when the linkage component swings in a direction corresponding to the movement of the movable gripper toward the fixed gripper, the linkage component and the first swing-restraining end interfere with each other. This invention is not limited by the specific shape and structure of the linkage component and the first swing-restraining end in the swing-restraining part, nor by the specific assembly structure of the linkage component and the first swing-restraining end. Similarly, this invention only needs to be configured such that when the linkage component swings in a direction corresponding to the movement of the movable gripper retracting from the fixed gripper, the linkage component and the second swing-restraining end interfere with each other. This invention is not limited by the specific shape and structure of the linkage component and the second swing-restraining end in the swing-restraining part, nor by the specific assembly structure of the linkage component and the second swing-restraining end.

[0137] Furthermore, in the above-described embodiment, the advance / retreat limiting mechanism 1100 of the wire gripper 1001 is incorporated into a parallel linkage mechanism in which the base portion 1012 with a fixed wire gripping portion 1010, the lower gripping body 1021 of the movable wire gripping portion 1020, the operating portion 1030, the first linkage portion 1040, and the second linkage portion 1050 are respectively considered as mechanical elements. The advance / retreat limiting mechanism 1100 is implemented as a swing limiting portion 1400 that directly acts on the first linkage portion 1040 to restrict its swing.

[0138] On the other hand, in the wire gripper 1001, the forward and backward movement restriction mechanism 1100 can also directly act on the lower gripper 1021 to restrict its forward and backward movement respectively. Alternatively, the forward and backward movement restriction mechanism 1100 can be any single or multiple mechanical elements that form a parallel linkage mechanism, such as either or both of the base portion 1012 and the lower gripper 1021, and either or both of the first linkage member 1040 and the second linkage member 1050. By acting on these mechanical elements, the forward and backward movement of the lower gripper 1021 can be indirectly restricted respectively. Furthermore, the wire gripper of this invention can also be... Figure 13As shown in (A), the cable gripper is configured to operate via a linkage mechanism that includes a first linkage member 1040 as a single linkage member.

[0139] In summary, the cable gripper of this utility model can be any cable gripper that includes: a fixed cable gripping part, which includes a fixed gripping body having a cable-shaped pressing part; a movable gripping body, which has a cable-shaped holding part that moves forward and backward relative to the cable-shaped pressing part of the fixed gripping body; an operating part for receiving external force; and a linkage member, which is connected to the fixed cable gripping part, the movable gripping body, and the operating part respectively. The movement of the movable gripping body relative to the fixed gripping body is linked to the movement of the operating part and the swinging of the linkage member. The cable gripper has a forward and backward limiting mechanism that can variably limit the forward and backward movement of the movable gripping body relative to the fixed gripping body according to the operation from the outside.

[0140] In other words, this invention can be any structure that includes a retraction limiting mechanism that variably restricts the forward and backward movement of the movable gripper relative to the fixed gripper based on external operation. Accompanying the retraction limiting mechanism, the forward and backward movement of the movable gripper relative to the fixed gripper is linked to the movement of the operating part and the swinging of the linkage components. The retraction limiting mechanism is not limited by the specific structure of the components constituting the wire gripper that acts to restrict the forward and backward movement of the movable gripper relative to the fixed gripper. Furthermore, the wire gripper of this invention is not limited by the number, shape, or other specific structure of the linkage mechanism in which the forward and backward movement relative to the fixed gripper is linked to the movement of the operating part and the swinging of the linkage components. Moreover, it is not limited by the specific configuration of the retraction limiting mechanism within the linkage mechanism. However, when the forward and backward limiting mechanism is implemented as a swinging limiting part 1400 that swings the link member such as the first link member 1040, it is more preferable to make the forward and backward limiting mechanism a simple and small structure, and to incorporate it as part of the parallel link mechanism of the wire gripper in a space-saving manner.

[0141] Furthermore, in the above description, the example of the wire gripper 1001 gripping the wire was used. However, the wire-like body of this utility model can be any wire, including bare wire, covered wire, bare metal wire, covered metal wire, rope, or other wire-like components that are the object of wire tensioning operations, and is not limited by its material, purpose, or structure.

[0142] As described above, this utility model can be implemented in various ways in mainland China, incorporating the above description, without departing from its technical scope.

[0143] That is, various changes can be made to the above-described embodiments regarding structure, shape, material, quantity, position or configuration without departing from the technical concept and purpose of this utility model, and these changes are also included in this utility model.

[0144] Industrial availability

[0145] The present invention, as described above, has the effect of preventing the gap between the movable gripper and the fixed gripper from changing in a smaller manner even when an unexpected force is applied, and is useful, for example, in the application of wire grippers.

[0146] Explanation of reference numerals in the attached figures

[0147] 1001 Wire Gripper

[0148] 1010 Fixed cable gripping unit

[0149] 1010x Linear Pressing Part

[0150] 1011 Upper gripping body

[0151] 1012 Abutment

[0152] 1013 First Linkage Assembly Section

[0153] 1014 Second Linkage Assembly Mounting Section

[0154] 1020 Movable Wire Gripping Unit

[0155] 1020x Linear Body Holding Section

[0156] 1021 Lower gripper

[0157] 1021x containment slots

[0158] 1022 First Cable Gripper Installation Section

[0159] 1023 Second cable assembly section

[0160] 1030 Operations Department

[0161] 1030a First Operating Unit

[0162] 1030b Second Operating Unit

[0163] 1031 Parallel Department

[0164] 1032 Oblique section

[0165] 1032x mounting holes

[0166] 1033 Connecting pin

[0167] 1040 First Linkage Component

[0168] 1041x First face with an inner opening

[0169] 1041 First Linkage Main Body

[0170] 1041a Edge

[0171] 1042 First vertex

[0172] 1042x First connecting rod insertion hole

[0173] 1043 Second vertex

[0174] 1043x Second Linkage Through Hole

[0175] 1044 Third vertex

[0176] 1044x Third Linkage Through Hole

[0177] 1050 Second Linkage Component

[0178] 1051 Second Linkage Main Body

[0179] 1051x Second face inner opening

[0180] 1052 Fourth vertex

[0181] 1052x Fourth Linkage Through Hole

[0182] 1053 Fifth vertex

[0183] 1053x Fifth Linkage Through Hole

[0184] 1054 Sixth vertex

[0185] 1054x Sixth Linkage Through Hole

[0186] 1100 Restricted Entry and Exit Agencies

[0187] 1110 Connecting Section

[0188] 1111 Link to main body

[0189] 1111a First connecting component

[0190] 1111b Second connecting component

[0191] 1112 Card Joint Sales

[0192] 1120 Adjustment Section

[0193] 1121 Regulation subject

[0194] 1121a Threaded section

[0195] 1121b connector

[0196] 1123b Connecting shaft

[0197] 1121b1 Cylindrical section

[0198] 1121b2 casing

[0199] 1121s outer peripheral surface

[0200] 1122 Operating Terminal

[0201] 1123 Deployment End

[0202] 1123a Supporting Entity

[0203] 1124 Connecting Pivot

[0204] 1125 Maintenance Section

[0205] 1125a Lower fixing pin

[0206] 1125b Upper fixing pin

[0207] 1125c Maintain the main body

[0208] 1125x threaded hole

[0209] 1125y Lower side fixing hole

[0210] 1125z upper mounting hole

[0211] 1400 Oscillation Control Unit

[0212] Ax1 First Pivot

[0213] Ax2 Second Pivot

[0214] Ax3 Third Pivot

[0215] Ax4 Fourth Pivot

[0216] Ax5 Fifth Pivot

[0217] Ax6 Sixth Pivot

Claims

1. A wire gripper, characterized in that, It comprises: a fixed gripping part, which includes a fixed gripping body having a line-shaped pressing part; a movable gripping body having a line-shaped holding part that moves forward and backward relative to the line-shaped pressing part of the fixed gripping body; an operating part for receiving external force; and a linkage member connected to the fixed gripping part, the movable gripping body, and the operating part, respectively. The movable gripper's forward and backward movement relative to the fixed gripper is connected to the movement of the operating part and the swinging of the linkage component, wherein... The wire gripper has a forward and backward limiting mechanism that can variably limit the forward and backward movement of the movable gripper relative to the fixed gripper based on external operation.

2. The wire gripper according to claim 1, characterized in that, The forward / backward limiting mechanism has a swinging restraint part, which includes: The first swing restraint end interferes with the swing of the link component that swings in a direction corresponding to the movement of the movable gripper toward the fixed gripper, thereby restraining the swing. as well as The second swing restraint end interferes with the swinging of the linkage component in a direction corresponding to the movement of the movable gripper retracting from the fixed gripper, thereby restraining the swing. When the operating part does not receive external force, the linkage component swings in a direction corresponding to the movement of the movable gripper toward the fixed gripper or the movement of the movable gripper backward from the fixed gripper, depending on the operation from the outside.

3. The wire gripper according to claim 2, characterized in that, The second swing restraint end of the swing restraint part of the advance / retreat restriction mechanism is fixed to the operating part in a state where its position is variable relative to the operating part according to an operation from the outside. The first swing restraint end of the swing restraint part of the forward / backward restriction mechanism is configured such that its position is at least variable relative to the link member, corresponding to a change in the position of the second swing restraint end. The forward and backward distance of the movable gripper relative to the fixed gripper and the changes in the positions of the first swing restraint end and the second swing restraint end of the forward and backward restriction mechanism are variably restricted accordingly.

4. The wire gripper according to claim 3, characterized in that, The swing restraint part of the advance / retreat restriction mechanism includes: A connecting part, which connects the first swing-controlling end of the swing-controlling part as one end, variably and freely swinging relative to the connecting rod member, and freely swinging relative to the operating part at the other end; and The adjustment unit includes an adjustment body having an adjustment front end that is flexibly connected to the other end of the connecting part as a second swing-controlling end of the swing-controlling part. The adjustment body is moved according to an external operation, thereby flexibly adjusting the position of the second swing-controlling end relative to the operation part. The distance the movable gripper moves forward or backward relative to the fixed gripper is variablely limited based on the position change of the second swing restraint end adjusted by the adjustment unit.

5. The wire gripper according to claim 3 or 4, characterized in that, Regarding the first swing restraint end of the swing restraint part of the aforementioned forward / backward restriction mechanism, When viewed along the swing axis of the connecting rod component and the movable gripper... The position of the link component in the plane is variable, which is the connection position between the link component and the fixed gripper, the connection position between the link component and the movable gripper, and the connection position between the link component and the operating part.

6. The wire gripper according to claim 1 or 2, characterized in that, It also includes a secondary linkage component, which is arranged side-by-side with the linkage component along the extending direction of the linear pressing portion of the fixed gripper and the linear holding portion of the movable gripper, and is flexibly connected to the fixed gripping portion, the movable gripper, and the operating portion. The connecting rod component, the secondary connecting rod component, the fixed wire gripping part, the movable gripping body, and the operating part form a parallel linkage mechanism that allows the movable gripping body to move forward and backward relative to the fixed gripping body while maintaining the same posture. The connecting rod component and the auxiliary connecting rod component are components of the same shape.

7. The wire gripper according to claim 1 or 2, characterized in that, The advance / retreat restriction mechanism is located between the linear body holding part and the operating part of the fixed gripper, along the advance / retreat direction of the movable gripper relative to the fixed gripper.

Images